I hope that there will be a proper investigation into what has been happening in Fallujah, carried out by a completely independent agency, and that that can start before the evidence is all gone.

"AC-130 gunships are not exactly selective weapons" - but there are some military situations where it is essential to use weapons which are as selective as possible. Minimising noncombatant casualties is not a secondary matter, it is a primary consideration, every bit as important as minimising troop casualties.